Black Friday ****

I bought 2 t-shirts the Thursday of black Friday at Total Sport they were exactly the same only difference was size they both had a black Friday sticker with the original price of R99 and special price of R69. When I got got home checking the price I was charged normal price on the other. Went back following day the Q was by the door with only 2 cashiers couldn't wait as I have a small baby.. Yesterday I went back they refused to refund my the difference. Saying that I am lying it was not marked as special. This happen at your Greenstone branch. NB! I could not come during the week I was working.